In addition, a further 120 girls are to be recruited at baseline to act as potential reserves should girls allocated to receive the T&T intervention drop out of the intervention in its first 8 weeks. Where such drop-out did occur, the girl dropping out of the intervention and her matched pair in the comparison group would nonetheless remain in the trial analytic sample in order to minimize selection bias. A reserve pair from the same school, one randomized to replace the drop-out on the intervention and one allocated to comparison group, would augment the drop-outs in the analytic sample. Any girls who drop out of T&T after 8 weeks will not be replaced on the intervention and will also remain in the trial analytic sample.